Dewey Land Company retained Cornerstone Earth Group, Inc. to provide geotechnical engineering services for the construction of a four-story, 46,420 square-foot mixed-use office building with 1,820 square feet of retail at 225 California Avenue in Burlingame, California. The office building and 130-space parking garage will be of concrete construction. Grading is anticipated to include an excavation depth up to about 36 feet for the three-level underground parking garage.